Finding the Fourth Proportional to 21,581,759.44, 29,781,941.78 and 11,792,539.68
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Solution
The fourth proportional to 21,581,759.44, 29,781,941.78 and 11,792,539.68 is: 16,273,220.50
Step by Step Solution
- Step 1: Write the proportion equation
21,581,759.44 : 29,781,941.78 = 11,792,539.68 : x - Step 2: Convert to fraction form
21,581,759.44/29,781,941.78 = 11,792,539.68/x - Step 3: Cross multiply
21,581,759.44x = 29,781,941.78 × 11,792,539.68 - Step 4: Simplify right side
21,581,759.44x = 351,204,730,188,099.81 - Step 5: Solve for x
x = 351,204,730,188,099.81/21,581,759.44 - Step 6: Final answer
x = 16,273,220.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.